Multiple choice

If $15$ men can complete a piece of work in $30$ days, then how many days will it take for $18$ men to complete it ?

  1. $22$ days
  2. $25$ days
  3. $15$ days
  4. $29$ days
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Work is constant. 15 * 30 = 18 * x. x = 450 / 18 = 25 days.

AI explanation

Using the formula for inverse proportionality, the total work is 15 men multiplied by 30 days, which gives 450 man-days. For 18 men to complete the same work, the days required will be 450 man-days divided by 18 men, resulting in 25 days.

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